Glass tempering furnace with zone control function

Abstract

The utility model relates to the technical field of glass processing, in particular to a glass tempering furnace with a zone control function. The device comprises an upper furnace body, a lower furnace body, a first roller conveyor, a second roller conveyor, a third roller conveyor and four longitudinal moving baffles, the first roller conveyor and the third roller conveyor are arranged on the two sides of the first roller conveyor respectively. The upper furnace body and the lower furnace body are arranged above and below a roller of the second roller conveyor correspondingly, fixed baffles are arranged at the two ends of the top of the lower furnace body, and lifting baffles are vertically installed at the two ends of the upper furnace body in a sliding mode. Two longitudinal moving baffles movably penetrate through one end of the second roller conveyor rack, and the other two longitudinal moving baffles movably penetrate through the other end of the second roller conveyor rack. According to the technical scheme, the size of the feeding port can be correspondingly adjusted according to the size of glass, the exposed area of the feeding port is reduced as much as possible, and therefore a large amount of hot air can be prevented from overflowing from the interior of the cavity, and the energy utilization efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of glass processing technology, and in particular to a glass tempering furnace with zone control function. Background Technology

[0002] Glass tempering furnaces are one of the main pieces of equipment for processing ordinary glass into tempered glass. Currently, glass tempering furnaces generally use physical heating methods, which heat the glass to near its softening point and then rapidly cool it with air. The reaction caused by the temperature change forms a pressure layer on the glass surface and a stress layer inside.

[0003] In the existing technology, the inlet and outlet dimensions of most tempering furnaces are usually fixed. In order to meet the processing needs of glass of different sizes, the inlet and outlet are set as large as possible. However, this can easily cause hot air leakage, and high-speed cold air on one side can also easily enter the furnace body, resulting in a large-scale circulation between hot and cold air. Utility Model Content

[0004] The purpose of this invention is to address the problems existing in the background technology by proposing a glass tempering furnace with zone control function.

[0005] The technical solution of this utility model is a glass tempering furnace with zone control function, including an upper furnace body, a lower furnace body, a first roller conveyor, a second roller conveyor, a third roller conveyor, two first limit baffles, two second limit baffles, and four longitudinal moving baffles.

[0006] The first and third roller conveyors are respectively located on both sides of the first roller conveyor; the upper and lower furnace bodies are respectively located above and below the rollers of the second roller conveyor. Fixed baffles are provided at both ends of the top of the lower furnace body, and lifting baffles are vertically slidably installed at both ends of the upper furnace body. A second connecting frame is fixedly connected between the two lifting baffles. An electric push rod for driving the movement of the second connecting frame is installed on the upper furnace body; two longitudinal moving baffles movably pass through one end of the frame of the second roller conveyor, and two other longitudinal moving baffles movably pass through the other end of the frame of the second roller conveyor. A first connecting frame is connected between the two longitudinal moving baffles on the same side. A power component for driving the two first connecting frames to move closer or further apart is installed on the upper furnace body; two first limiting baffles are arranged side by side above the second roller conveyor, and the two longitudinal moving baffles on the same side are connected by the first limiting baffles; two second limiting baffles are arranged side by side above the first roller conveyor, and the two second limiting baffles are fixedly connected to the first connecting frames on both sides respectively.

[0007] Preferably, the outer sides of multiple rollers on the second roller conveyor are provided with heat insulation sleeves, which are fixedly connected to the frame of the second roller conveyor, and the upper end of the heat insulation sleeve is provided with through holes along its length.

[0008] Preferably, the bottom ends of multiple insulation jackets are connected by connecting pipes, which extend to the outside of the lower furnace body.

[0009] Preferably, the power assembly includes a servo motor, a gear, and two racks. A motor mounting bracket is provided at the upper end of the upper furnace body. The servo motor is mounted on the motor mounting bracket, the gear is mounted on the output shaft of the servo motor, and the two racks are fixedly mounted on the first connecting brackets on both sides. Both racks are meshed with the gear.

[0010] Preferably, two cooling air nozzles are installed on the frame of the second roller conveyor near the discharge end of the second roller conveyor, with the two cooling air nozzles installed above and below the roller respectively.

[0011] Preferably, both the upper and lower furnace bodies are heated using resistance wires or silicon carbide rods as heating elements.

[0012] Preferably, both the upper and lower furnace bodies are provided with heat insulation layers.

[0013] Preferably, each of the two second limiting baffles is connected to an inclined plate on the side away from the upper furnace body, and the two inclined plates are in the shape of an "eight".

[0014] Compared with the prior art, the present invention has the following beneficial technical effects: In this technical solution, by adjusting the distance between the lifting baffle and the fixed baffle and the distance between the two longitudinally moving baffles, the leakage of hot air in the cavity between the upper furnace body and the lower furnace body is minimized, and large-scale circulation between hot and cold air is prevented; in addition, the movement of the first connecting frame on both sides drives the movement of the two first limiting baffles and the two second limiting baffles, thereby achieving the limiting work of the glass and preventing the glass from deviating during the movement. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the structure of the second roller conveyor, the upper furnace body, and the lower furnace body in this utility model.

[0017] Figure 3 This is a cross-sectional view of the upper and lower furnace bodies of this utility model.

[0018] Reference numerals: 101, Upper furnace body; 102, Lower furnace body; 2, First roller conveyor; 3, Second roller conveyor; 4, Third roller conveyor; 5, Lifting baffle; 6, Fixed baffle; 7, Longitudinal moving baffle; 8, First connecting frame; 9, Compressor cooler; 10, Cold air nozzle; 11, Insulation sleeve; 12, Connecting pipe; 13, Second connecting frame; 14, Electric push rod; 15, Rack; 16, Gear; 17, Servo motor; 18, Motor mounting bracket; 191, First limiting baffle; 192, Second limiting baffle; 1921, Inclined plate; 20, Connecting frame. Detailed Implementation

[0019] Example 1

[0020] like Figures 1-3 As shown in the figure, the glass tempering furnace with zone control function proposed in this embodiment includes an upper furnace body 101, a lower furnace body 102, a first roller conveyor 2, a second roller conveyor 3, a third roller conveyor 4, two first limiting baffles 191, two second limiting baffles 192, and four longitudinal moving baffles 7.

[0021] The first roller conveyor 2 and the third roller conveyor 4 are respectively located on both sides of the first roller conveyor 2; the upper furnace body 101 and the lower furnace body 102 are respectively located above and below the roller of the second roller conveyor 3. The bottom end of the upper furnace body 101 and the upper end of the lower furnace body 102 are both open. The upper furnace body 101 and the lower furnace body 102 are both fixedly connected to the frame of the second roller conveyor 3. The upper furnace body 101 and the lower furnace body 102 are both heated by resistance wire or silicon carbide rod as heating element. The upper furnace body 101 and the lower furnace body 102 are both provided with heat insulation layer.

[0022] Fixed baffles 6 are provided at both ends of the top of the lower furnace body 102, and both fixed baffles 6 are located in the gap between the rollers. Lifting baffles 5 are vertically slidably installed at both ends of the upper furnace body 101. The two lifting baffles 5 are located directly above the two fixed baffles 6 on both sides. A second connecting frame 13 is fixedly connected between the two lifting baffles 5. An electric push rod 14 for driving the movement of the second connecting frame 13 is installed on the upper furnace body 101. Two longitudinally moving baffles 7 movably pass through one end of the frame of the second roller conveyor 3, and the other two longitudinally moving baffles 7 movably pass through the other end of the frame of the second roller conveyor 3 on the same side. The two longitudinally moving baffles 7 are each connected by a first connecting frame 8. The upper furnace body 101 is equipped with a power component for driving the two first connecting frames 8 to move closer or further apart. The power component includes a servo motor 17, a gear 16, and two racks 15. A motor mounting bracket 18 is provided at the upper end of the upper furnace body 101. The servo motor 17 is mounted on the motor mounting bracket 18. The gear 16 is mounted on the output shaft of the servo motor 17. The two racks 15 are fixedly mounted on the first connecting frames 8 on both sides. Both racks 15 are meshed with the gear 16. It should be noted that the two racks 15 are always meshed with the gear 16.

[0023] Two first limiting baffles 191 are arranged side by side above the second roller conveyor 3, and the two longitudinal moving baffles 7 on the same side are connected by the first limiting baffles 191. Two second limiting baffles 192 are arranged side by side above the first roller conveyor 2, and the two second limiting baffles 192 are fixedly connected to the first connecting frames 8 on both sides respectively. An inclined plate 1921 is connected to the side of the two second limiting baffles 192 away from the upper furnace body 101. The two inclined plates 1921 are in the shape of an "eight" and form an opening, so that the glass can be easily moved between the two second limiting baffles 192.

[0024] Two cold air nozzles 10 are installed on the frame of the second roller conveyor 3 near the discharge end of the second roller conveyor 3. The two cold air nozzles 10 are installed above and below the roller respectively. It should be noted that the two cold air nozzles 10 are supplied with cold air through a compressor cooler 9 and a fan. The compressor cooler 9 is used to generate cold air, and the input end of the fan is connected to the output end of the compressor cooler 9. The output end of the fan is connected to a T-junction, and the two output ends of the T-junction are connected to the two cold air nozzles 10 through cold air pipes.

[0025] It should be added that in this technical solution, the control of the heat source and the cold source is achieved by the first PLC controller and the second PLC controller respectively. The first PLC controller controls the power of the heating element, and the second PLC controller is used to control the operating power of the compressor cooler 9 and the fan, thus realizing the function of zone control.

[0026] In this embodiment, the first roller conveyor 2 is used to place glass. In the initial state, a small gap is maintained between the upper end of the fixed baffle 6 and the bottom surface of the glass. The lifting height of the lifting baffle 5 is adjusted according to the thickness of the glass, so that the lifting baffle 5 moves closer to the upper surface of the glass to reduce the gap between the lifting baffle 5 and the glass. Then, the distance between the two longitudinal moving baffles 7 is adjusted according to the width of the glass, so that the two longitudinal moving baffles 7 contact the two ends of the glass or maintain a small gap. This allows the size of the exposed gap (the gap between the ends of the upper furnace body 101 and the lower furnace body 102) to be adjusted according to different glass sizes, minimizing the leakage of hot air in the cavity between the upper furnace body 101 and the lower furnace body 102 and preventing large-scale circulation between hot and cold air. In addition, the movement of the first connecting frame 8 on both sides drives the two first limiting baffles 191 and the two second limiting baffles 192 to move, thereby limiting the glass and preventing the glass from deviating during movement.

[0027] Example 2

[0028] like Figure 3 As shown in the figure, this embodiment proposes a glass tempering furnace with zone control function. Compared with the first embodiment, in this embodiment, the outer sides of multiple rollers on the second roller conveyor 3 are provided with heat insulation sleeves 11. The heat insulation sleeves 11 are fixedly connected to the frame of the second roller conveyor 3. The upper end of the heat insulation sleeve 11 is provided with through holes along its length. Since the rollers are continuously rotating, the setting of the heat insulation sleeves 11 ensures that only the upper end of the rollers is in contact with hot air, thereby preventing the rollers from heating up too quickly.

[0029] Multiple insulation sleeves 11 are connected to a connecting pipe 12 at their bottom ends. The connecting pipe 12 extends to the outside of the lower furnace body 102 and is connected to the outside space. Outside air enters the inside of the insulation sleeve 11 through the connecting pipe 12, thereby cooling the drum and preventing the drum temperature from becoming too high. It should be noted that the insulation sleeve 11 and the drum are fitted with a gap or have a small gap, thereby preventing a large amount of hot air from escaping.

[0030] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A glass tempering furnace with zone control function, characterized in that, It includes an upper furnace body (101), a lower furnace body (102), a first roller conveyor (2), a second roller conveyor (3), a third roller conveyor (4), two first limit baffles (191), two second limit baffles (192), and four longitudinal moving baffles (7); The first roller conveyor (2) and the third roller conveyor (4) are respectively located on both sides of the first roller conveyor (2); the upper furnace body (101) and the lower furnace body (102) are respectively located above and below the roller of the second roller conveyor (3). Fixed baffles (6) are provided at both ends of the top of the lower furnace body (102), and lifting baffles (5) are vertically slidably installed at both ends of the upper furnace body (101). A second connecting frame (13) is fixedly connected between the two lifting baffles (5). An electric push rod (14) for driving the second connecting frame (13) to move is installed on the upper furnace body (101); two longitudinal moving baffles (7) move through one end of the frame of the second roller conveyor (3), and the other two longitudinal moving baffles (7) move through one end of the frame of the second roller conveyor (3). The movable baffle (7) extends through the other end of the frame of the second roller conveyor (3). The two longitudinal movable baffles (7) on the same side are connected by a first connecting frame (8). The upper furnace body (101) is equipped with a power component for driving the two first connecting frames (8) to move closer or further apart. The two first limiting baffles (191) are arranged side by side above the second roller conveyor (3). The two longitudinal movable baffles (7) on the same side are connected by the first limiting baffles (191). The two second limiting baffles (192) are arranged side by side above the first roller conveyor (2). The two second limiting baffles (192) are fixedly connected to the first connecting frames (8) on both sides respectively.

2. A glass tempering furnace with zone control function according to claim 1, characterized in that, The outer sides of multiple rollers on the second roller conveyor (3) are provided with heat insulation sleeves (11). The heat insulation sleeves (11) are fixedly connected to the frame of the second roller conveyor (3). The upper end of the heat insulation sleeves (11) has through holes along its length.

3. A glass tempering furnace with zone control function according to claim 2, characterized in that, Multiple insulation sleeves (11) are connected to a connecting pipe (12) at their bottom ends, and the connecting pipe (12) extends to the outside of the lower furnace body (102).

4. A glass tempering furnace with zone control function according to claim 1, characterized in that, The power assembly includes a servo motor (17), a gear (16), and two racks (15). A motor mounting bracket (18) is provided on the upper end of the upper furnace body (101). The servo motor (17) is mounted on the motor mounting bracket (18), the gear (16) is mounted on the output shaft of the servo motor (17), and the two racks (15) are fixedly mounted on the first connecting brackets (8) on both sides. Both racks (15) are meshed with the gear (16).

5. A glass tempering furnace with zone control function according to claim 1, characterized in that, Two cold air nozzles (10) are installed on the frame of the second roller conveyor (3) near the discharge end of the second roller conveyor (3). The two cold air nozzles (10) are installed above and below the roller respectively.

6. A glass tempering furnace with zone control function according to claim 1, characterized in that, Both the upper furnace body (101) and the lower furnace body (102) are heated by resistance wire or silicon carbide rod.

7. A glass tempering furnace with zone control function according to claim 1, characterized in that, Both the upper furnace body (101) and the lower furnace body (102) are provided with heat insulation layers.

8. A glass tempering furnace with zone control function according to claim 1, characterized in that, Two second limiting baffles (192) are connected to inclined plates (1921) on the side away from the upper furnace body (101), and the two inclined plates (1921) are in the shape of "eight".

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